CN105650289B - Suitable for program-controlled shut-off valve - Google Patents
Suitable for program-controlled shut-off valve Download PDFInfo
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- CN105650289B CN105650289B CN201610129456.7A CN201610129456A CN105650289B CN 105650289 B CN105650289 B CN 105650289B CN 201610129456 A CN201610129456 A CN 201610129456A CN 105650289 B CN105650289 B CN 105650289B
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The invention discloses a kind of suitable for program-controlled shut-off valve, including valve body and driving device, the upper and lower ends of the valve deck are fixedly connected with the driving device and the valve body respectively, the through-hole of the valve deck is in small big ladder-like under internal diameter, it is divided into several isometrical hole sections, lower hole section is valve rod hole hole section, upper hole section is connection lumen pore section, it is between the two sealed letter hole section, inside set the sealing sleeve pipe with interior exterior seal ring, the inner wall of the lumen lower part is equipped with several vertical guiding ribs, the medial surface of the guiding rib is smooth cylindrical surface, the driving device is the hydraulic cylinder being vertically arranged, the push rod lower end of the hydraulic cylinder extends in the connection chamber section of the valve deck through-hole and is connect by shaft coupling with the upper end of the valve rod, the hydraulic cylinder is also provided with signal pickup assembly.The present invention is suitable for modular design, and flap is stable, and sealing effect is good, small to the resistance of valve rod, and can carry out program-controlled.
Description
Technical field
The present invention relates to a kind of suitable for program-controlled shut-off valve.
Background technique
Existing shut-off valve includes valve body and the valve deck that is fixedly mounted on valve body, and valve deck covers the installation opening on valve body, with
Valve body collectively forms valve housing, and the valve chamber in valve housing is divided into snout cavity, lumen and outlet plenum, the port of snout cavity
Valve inlet is constituted, the port of outlet plenum constitutes valve export, the valve seat of annular, the valve seat are equipped between lumen and outlet plenum
Horizontally disposed, the through-hole in valve seat center is connected to lumen and outlet plenum, and flap is additionally provided in lumen, and flap and valve seat constitute valve
Sealing pair is respectively equipped with mutual corresponding sealing surface, when flap contacts under the drive of valve actuator with seat pressure,
The through-hole in valve seat center is blocked by flap, and valve is in close state, when flap is detached under the drive of valve actuator
When valve seat, the medium channel through valve seat center through hole is open-minded, and valve is in the open state, and valve actuator is connected by valve rod
Flap, valve rod pass through the valve rod hole on valve deck, and one end is located in lumen, connect flap, and the other end is located at outside valve housing, connect
Driving device, the position that valve rod passes through valve deck is equipped with stuffing-box, is equipped with airtight and watertight padding in the stuffing-box, for allowing valve rod
The sealing between valve rod and valve seat is realized while moving up and down, and the dielectric leakage in valve housing is avoided to come out, valve driving
Device can usually use hydraulic cylinder.There are following defects for this shut-off valve: first is that valve rod and fluid cylinder push rod (piston rod) disjunctor,
Valve and valve actuator are connected together, the modular design of total structure is unfavorable for, accuracy of manufacture requirement is improved, increases
Assembly difficulty is added；Second is that flap positions unstable at work, valve is easily caused to vibrate at work；Third is that valve rod and valve deck
Between the stuffing box structure of sealing easily cause valve rod resistance big, and easily leakage；Fourth is that gasket use is opened between valve body and valve deck
Formula structure, easily causes gasket to be lost, and extruding force reduces, seal failure；Fifth is that not having remote transfer signal device, it is not easy to realize long-range control
System.
Summary of the invention
In order to overcome the drawbacks described above of the prior art, the present invention provides a kind of suitable for program-controlled shut-off valve, this cut-off
Valve is suitable for the modular design of valve body and driving device total structure, and flap is stable, and sealing effect is good, to valve rod
Resistance is small, and can carry out program-controlled.
The technical solution adopted in the present invention: a kind of suitable for program-controlled shut-off valve, including valve body and driving device, institute
Stating valve body includes valve body, valve deck, flap and valve rod, the valve deck cover the body top valve body installation opening and with institute
State valve seal connection, collectively form valve housing with the valve body, the valve chamber in the valve housing be followed successively by snout cavity, in
Chamber and outlet plenum are equipped with valve seat between the lumen and outlet plenum, in a ring, center through hole is connected to the lumen to the valve seat
And outlet plenum, the flap are located in the lumen, the valve deck is cylindrical, the upper and lower ends of the valve deck respectively with the drive
Dynamic device is fixedly connected with the valve body, and the valve deck is equipped with the valve deck through-hole along axis, and the valve deck through-hole is in small under internal diameter
It is upper big ladder-like, it is divided into several isometrical hole sections, the lower hole section of the valve deck through-hole is valve rod hole hole section, and upper hole section is connection
Lumen pore section, the valve rod pass through the valve rod hole hole section, and lower end extends to the lumen and connects the flap, and upper end extends to
The connection lumen pore section, the driving device are the hydraulic cylinder being vertically arranged, and the push rod of the hydraulic cylinder passes through hydraulic cylinder body
Bottom, lower end extends in the connection chamber section of the valve deck through-hole and connect by shaft coupling with the upper end of the valve rod,
The shaft coupling is located in the connection lumen pore section, the side of the shaft coupling, valve rod and push rod and the lumen pore section that couples
There are distances between hole wall.
Beneficial effects of the present invention: since driving device and valve body are separable self-contained unit, each correlation of the two
It can be connected using dismountable connection type between part, hydraulic cylinder and valve body are assembled in one with can be convenient
It rises, splits the hydraulic cylinder fitted together and valve body with also can be convenient, it is thus achieved that the building blocks of total structure
Change design, facilitates production, installation and maintenance.
Detailed description of the invention
Fig. 1 is schematic diagram of the invention.
Specific embodiment
Referring to Fig. 1, the present invention provides a kind of suitable for program-controlled shut-off valve comprising valve body 100 and driving device
300, the valve body includes valve body 101, valve deck 102, flap 122 and valve rod 123, and the valve deck is covered in the body top
Valve body installation opening and connect with the valve seal, the valve body installation opening of the body top is thus closed, with the valve
Body collectively forms valve housing, and the valve body installation opening is opening of the valve chamber on valve body, typically to valve inner part
It assembles and is arranged, after the assembly of corresponding inner part, sealed with valve deck, the valve chamber in the valve housing is followed successively by snout cavity
111, lumen 112 and outlet plenum 113, the water inlet side ports of the intake antrum constitute the valve inlet, and the water chamber goes out
Water side ports constitute the valve export, and the snout cavity, lumen and outlet plenum are sequentially communicated, and are formed from valve inlet to valve
The medium channel of outlet, the installation opening of the body top should usually be located at the upper end of the lumen, to adapt to flap and valve seat
Deng the installation and setting in lumen (or passing through lumen), valve seat 121 is equipped between the lumen and outlet plenum, the valve seat is usual
Should be horizontally disposed with, to be adapted to the yo-yo fashion of flap, the valve seat in a ring, center through hole be connected to the lumen and
Outlet plenum, the flap are located in the lumen, and the valve deck is cylindrical, should generally be vertical, to match with valve rod
The part of set is mounted in the vertical cavity of valve deck, is suitable for the mounting means that valve rod extends up and down, is realized between valve rod and valve deck
Reliable sealing, the upper and lower ends of the valve deck are fixedly connected with the driving device and the valve body respectively, are achieved in institute
Installation and fixation of the driving device on valve body are stated, the valve deck is equipped with the valve deck through-hole along axis, which constitutes institute
State the vertical cavity of valve deck, the valve deck through-hole be in it is small big ladder-like under internal diameter, be divided into several isometrical hole sections, the valve
The lower hole section of lid through-hole is valve rod hole hole section, and upper hole section is connection lumen pore section, and the valve rod passes through the valve rod hole hole section, lower end
It extends to the lumen and connects the flap, upper end extends to the connection lumen pore section, and the driving device is to be vertically arranged
Hydraulic cylinder, the push rod (piston rod or the axially extending bar connecting with piston rod) 311 of the hydraulic cylinder passes through hydraulic cylinder body
Bottom, lower end extends in the connection chamber section of the valve deck through-hole and connect by shaft coupling with the upper end of the valve rod,
The shaft coupling is located in the connection lumen pore section, described due to the shaft coupling as the push rod of driving device moves up and down
Whole strokes of shaft coupling should all usually be located in the upper hole section of the valve deck through-hole, the side of the shaft coupling, valve rod and push rod
There are distances between face and the hole wall for coupling lumen pore section, to guarantee mobile flexibility and convenient for each in connection lumen pore section
The assembling of part generallys use above-mentioned connection type, the valve body and driving device can be disposed as detachable only
Vertical device is also convenient for disassembling and maintaining convenient for the manufacture and overall package of each device.
Preferably using allowing, there are the shaft couplings that horizontal direction deviates for the shaft coupling.For example, the shaft coupling include with
The coupling bar 201 of the valve rod coaxial (axis is located along the same line) and with the push rod it is coaxial couple cup 204, it is described
The lower end of extension bar is fixedly connected with the valve rod, and the upper end of the connection cup is fixedly connected with the push rod, and the connection cup is set
There is the cup chamber of opening direction, the opening of the cup chamber is equipped with the plug 203 with vertical through holes, and the coupling bar passes through described
The connection part 202 of the vertical through holes of plug, the upper end is intracavitary positioned at the cup of the connection cup and use cannot be via the plug
Vertical through holes abjection structure (for example, when the coupling bar connection part and the plug vertical through holes cross section it is equal
When rounded, the connection part of coupling bar maximum gauge in the horizontal direction is greater than the diameter of the vertical through holes of the plug),
There are gaps in the horizontal direction with the inner wall for coupling cup for the connection part of the coupling bar, are thus allowing the coupling bar
While having not coaxial or horizontal-shift to a certain extent relative to the connection cup, by the plug by the coupling bar
Connection part constrain in the connection cup cup it is intracavitary, to carry out the power in vertical (axial direction) and the transmitting of movement.It can pass through
Vertical position of the plug on the connection cup is adjusted, the removable amplitude or described of the coupling bar vertically is adjusted
Compression degree of the plug to the connection part of the coupling bar.By this shaft coupling allow between connected push rod and valve rod
There is certain opposite offset in horizontal direction, hence it is evident that reduce the requirement to associated part machining accuracy and assembly precision, be conducive to
Cost is reduced, guarantees runnability.
Being fixedly connected with mode and described couple between cup and the push rod between the coupling bar and the valve rod
The mode of being fixedly connected can use the prior art of any suitable.For example, the valve rod upper end is inserted into the lower end of the coupling bar
The vertical connecting hole in center and can be with preferably with the vertical connecting hole transition fit or interference fit of the valve rod upper-center
It is fixed by the lateral pin 206 for passing through the valve rod and the coupling bar, between the connection cup upper end and the push rod
Above-mentioned inserting mode can be used, or, it is preferred that the connection cup and the push rod use integral structure, described as a result,
Connecing cup can be considered in the integral structure bottom center provided with a vertical blind hole, which constitutes the cup chamber of the connection cup,
Its hole wall constitutes the wall of cup of the connection cup.The lower part of the integral structure is preferably diametrically greater than the main part of the integral structure
The cylindricality of diameter, to guarantee that the wall thickness and intensity of connection cup, the plug are screwed in the connection from the lower end of the connection cup
On cup, the plug can with the external screw thread for couple cup and being screwed on, correspondingly, it is described connection cup inner wall on have pair
The internal screw thread answered, using this mode that is screwed on, convenient for determining and adjusting vertical (axial direction) position of the plug on connection cup, so as to
Adjust the tightness of the connection part of the coupling bar vertically.
Positioning pin or positioning screw can be equipped between the plug and connection cup.
Unthreaded hole, preferably blind hole can be equipped on the side wall of the plug, so as to insertion screwdriver etc., limit in installation and removal
Plug rotation processed.
Unthreaded hole 205, preferably blind hole can also be equipped on the side wall of the push rod, to be inserted into screwdriver in installation and removal
Deng limitation push rod rotation.
Preferably, the connection part of the coupling bar is in the smooth spirogyrate of rotational symmetry.
It is further preferred that the connection part of the coupling bar (greater than the segment-shaped of hemisphere) spherical in shape or elliposoidal (are greater than
The ellipsoid of hemisphere lacks).
The inlet side of the valve body and the end of outlet side can be equipped with flange arrangement 106 or other connection structures, with
The convenient installation on pipeline.
Preferably, the inner wall of the lumen lower part is equipped with several vertical guiding ribs 105, and the guiding rib is in flap week
Upward distributed areas are preferably greater than semicircle, and the medial surface (inner surface radially) of each guiding rib is answered with the flap
There are play guiding to make between some lateral surface travel paths (travel path of the flap when there are not the situations such as deviate and vibrate)
Minim gap is kept off around the flap.Since the lower part of the lumen under normal conditions is located at the snout cavity
On extended line, the intersectional region with the snout cavity can be considered, the horizontal direction size in the region is typically greater than the flap
Outer diameter, flap periphery in the regional movement is unobstructed, thus only with the rigidity of valve rod be not sufficient to ensure that flap not because be situated between
Mass flow impact and disturbance etc. factors and deviate normal trace or swing (vibration) can be effective by the setting of above-mentioned guiding rib
Ground avoids flap from occurring horizontally deviating and vibrating in moving process, advantageously ensures that the sealing effect of valve and extension make
Use the service life.The alleged minim gap playing the guiding role refers to that the size in the gap is enough to allow the smooth movement of flap and is enough to limit
There is the horizontal-shift not allowed or swing in flap, is achieved in the guiding moved up and down to flap and position-limiting action.
The medial surface of the guiding rib is preferably smooth cylindrical surface, the axis of the cylinder shape preferably with the central axis of flap
Line overlap, and can be machined into through the installation opening of body top, the installation opening of the body top is preferably placed at the valve
The surface of valve and the cross-sectional area for being greater than the flap.
The inner surface of the installation opening hole wall of the body top, the inner wall on the lumen top and the guiding rib can position
In on the same cylindrical surface, the diameter on the cylindrical surface is slightly larger than the outer diameter of the flap, these faces can pass through in valve body moulding
Identical machine-tooled method is formed, and above-mentioned each face can be processed in same technical process, the installation opening being consequently formed
The as described lumen extends in the opening of body top, between the lumen top and the guiding rib and the flap there are
The minim gap playing the guiding role not only facilitates processing and assembly as a result, but also can also ensure that flap movement is smooth, and keep away
Exempt from the horizontal direction offset and vibration of flap.
The quantity of the guiding rib is preferably equal to 3 or is greater than 3, can usually make each according to the construction inside lumen
Guiding rib is uniformly distributed in the circumferential or substantially uniform distribution, or the distribution mode allowed using other, guarantees guide effect.
Preferably, sealed letter hole section is additionally provided in the valve deck through-hole, the sealed letter hole section is located at the valve rod hole hole
Between section and connection lumen pore section, sealing sleeve pipe 107 is equipped in the sealed letter hole section, the valve rod passes through the sealing sleeve pipe
Pore and there are fit-up gap, the pores of the sealing sleeve pipe between the pore hole wall of the sealing sleeve pipe (side wall of pore)
Hole wall is equipped with one or more horizontal inner seal ring slots, and the lateral surface of the sealing sleeve pipe is equipped with one or more horizontal
External seal annular groove, valve stem packing ring and valve bonnet seal circle 108 are embedded on the inner seal ring slot and external seal annular groove respectively,
The inside of the valve stem packing ring and the valve rod mutual extrusion, which are formed, as a result, seals, the outside of the valve bonnet seal circle and institute
The hole wall mutual extrusion for stating sealed letter hole section forms sealing, relative to by for packing box seal, this sealing means it is close
Envelope effect is good, and high reliablity, the service life is long, and small to the mobile resistance of valve rod.
Seal joint 109 can be set in the upper end of the sealing sleeve pipe, be fastened on seal joint by screw described
On the stage end face of sealed letter hole section and connection lumen pore section, it is achieved in the fixation to sealing sleeve pipe.
The valve stem packing ring and valve bonnet seal circle all can be O-rings.
The hole wall of the valve rod hole is equipped with horizontal valve rod hole closure gasket groove, is embedded on the valve rod hole closure gasket groove
Valve rod hole sealing ring 103, the inside of the valve rod hole sealing ring and the valve rod squeeze to form sealing as a result, further to mention
High valve rod sealing performance.
The valve rod hole sealing ring can be O-ring.
The periphery of the flap bottom can be equipped with annular notch, and usually (edge of cross section is in straight for right-angle notch
Angle), it is described annular notch on be equipped with annular flap sealing element 125, the flap bottom is fixedly installed with sealing element pressing plate
126, the sealing element pressing plate can be usually fastened on the bottom surface of the flap by screw 127, to realize sealing element pressure
The fixed installation of plate, the periphery of the sealing element pressing plate are pressed on the radially inner side region of the flap sealing element, thus not only
The fixation of flap sealing element is realized, but also is easily installed, dismantles, replaces and safeguards.
The axial length of the connection lumen pore section can be generally greater than the length of the valve rod hole hole section and sealed letter hole section
The sum of.
The internal diameter of the sealed letter hole section usually should be greater than the internal diameter of the valve rod hole hole section, described to couple the interior of lumen pore section
Diameter is preferably greater than the internal diameter of the sealed letter hole section.
The upper and lower ends of the valve deck are preferably provided with connecting flange structure, and the valve body upper end and the hydraulic cylinder lower end are set
Have corresponding flange arrangement, it is possible thereby to realized between valve body and valve deck by flange connection and valve deck and hydraulic cylinder it
Between be fixedly connected.
One or more vertical strip holes (window) 104 can be equipped on the hole wall of the connection lumen pore section, it can also not
Equipped with vertical strip hole, when multiple strip holes are arranged, the quantity of the strip hole is preferably 2,3 or 4, can be passed through
This/observation of this some holes inner case and operates the inner parts such as shaft coupling, such as is inserted into screwdriver etc. by strip hole, into
Row assembly or disassembly can also will couple the valve deck at lumen pore section and regard when the gross area of the strip hole of the setting is sufficiently large
For the frame structure being made of multiple arc surfaced columns.
The push rod side chamber of the hydraulic cylinder and without push rod side chamber be equipped with medium pipeline interface, the medium pipeline interface
It being equipped with flange 321, being connect with will pass through corresponding Outer Tube flange 322 with Outer Tube.
The cylinder body of the hydraulic cylinder may include cylindrical body 301 and be separately mounted to the cylindrical body upper and lower ends
Upper and lower end cap 303,302, the one or both ends of the cylindrical body are also provided with the suitable configurations connecting with respective end end cap,
When the upper and lower ends of the hydraulic cylinder are equipped with flange, flange knot that the flanges of the upper and lower ends uses the upper and lower side to cover
Structure.
The valve body and hydraulic cylinder can be sealed according to the prior art in the place setting of needs, for example, the hydraulic cylinder
Piston 312 and the cylindrical body of cylinder body between, the lower cover (bottom of hydraulic cylinder body) of the push rod and the hydraulic cylinder
Between and displacement thief rod (if any) and the upper end cover (top of hydraulic cylinder body) of the hydraulic cylinder between
Sealing ring can be set and the annular groove for being embedded in corresponding sealing ring according to the prior art.
The hydraulic cylinder is equipped with the signal pickup assembly 401 that can acquire push rod movable signal and/or position signal, described
Signal pickup assembly can be provided with or without communication system according to actual needs, to send collected signal.
The signal pickup assembly is preferably provided with displacement thief rod 411, and the displacement thief rod passes through the hydraulic cylinder
The top of body, lower end are fixedly connected with the piston of the hydraulic cylinder, and it is same with push rod under the drive of piston to be displaced thief rod as a result,
Step and with the movement of amplitude, the position signal of push rod and/or movable signal are passed into signal pickup assembly, the signal acquisition
Device can use the prior art or other technologies of any suitable, will be displaced position/movable signal converted electrical of thief rod
Number, so as to subsequent signal processing.
The hydraulic cylinder is also provided with the control device for controlling its fluid path, to control the on-off and medium flow field of fluid path
Amount, and then control putter action, control valve state.
The control device can be the dedicated control device of valve, be also possible to the media feed system using the valve
Control device, can also be the control device for the production system that media feed system is related to, can be local control device,
It can be tele-control system.
The signal of the signal pickup assembly can access the control device by wired and or wireless communications mode,
The control of hydraulic cylinder is carried out in this, as feedback control signal.
It is disclosed by the invention it is each preferably with optional technological means, unless otherwise indicated and one preferably or can selecting technology hand
Section is that further limiting for another technological means is outer, can form several different technical solutions in any combination.
Claims (9)
1. a kind of suitable for program-controlled shut-off valve, it is characterised in that including valve body and driving device, the driving device and valve
Door body is separable self-contained unit, and dismountable connection type connection is all made of between each part interconnected of the two,
The valve body includes valve body, valve deck, flap and valve rod, the valve deck cover the body top valve body installation opening and with
Valve seal connection collectively forms valve housing with the valve body, the valve chamber in the valve housing be followed successively by snout cavity,
Lumen and outlet plenum are equipped with valve seat between the lumen and outlet plenum, in a ring, center through hole is connected in described the valve seat
Chamber and outlet plenum, the flap are located in the lumen, and the valve deck is cylindrical, the upper and lower ends of the valve deck respectively with it is described
Driving device is fixedly connected with the valve body, and the valve deck is equipped with the valve deck through-hole along axis, and the valve deck through-hole is under internal diameter
It is small big ladder-like, it is divided into several isometrical hole sections, the lower hole section of the valve deck through-hole is valve rod hole hole section, and upper hole section is connection
Lumen pore section is connect, the valve rod passes through the valve rod hole hole section, and lower end extends to the lumen and connects the flap, and upper end extends
To the connection lumen pore section, the driving device is the hydraulic cylinder being vertically arranged, and the push rod of the hydraulic cylinder passes through hydraulic cylinder
The bottom of body, lower end extend in the connection chamber section of the valve deck through-hole and are connected by the upper end of shaft coupling and the valve rod
It connects, the shaft coupling is located in the connection lumen pore section, and the side of the shaft coupling, valve rod and push rod couples lumen pore section with described
Hole wall between there are distance, there are the shaft coupling that horizontal direction deviates, the shaft coupling packets using allowing for the shaft coupling
Include the coupling bar coaxial with the valve rod and with the push rod it is coaxial couple cup, the lower end of the coupling bar and the valve rod are solid
The upper end of fixed connection, the connection cup is fixedly connected with the push rod, and the connection cup is equipped with the cup chamber of opening direction, the cup
The opening of chamber is equipped with the plug with vertical through holes, and the coupling bar passes through the vertical through holes of the plug, the connection of the upper end
Socket part is intracavitary positioned at the cup of the connection cup and using the structure that cannot deviate from via the vertical through holes of the plug, the connection
There are gaps in the horizontal direction with the inner wall for coupling cup for the connection part of bar.
2. being suitable for program-controlled shut-off valve as described in claim 1, it is characterised in that if the inner wall of the lumen lower part is equipped with
Vertical guiding rib is done, distributed areas of the guiding rib in flap circumferential direction are greater than semicircle, the medial surface of each guiding rib
There are the minim gaps playing the guiding role between the due lateral surface travel path of the flap, keep off the week in the flap
It encloses.
3. being suitable for program-controlled shut-off valve as claimed in claim 2, it is characterised in that the medial surface of the guiding rib is smooth
Cylindrical surface, the installation opening of the body top are located at the surface of the flap and are greater than the cross-sectional area of the flap.
4. being suitable for program-controlled shut-off valve as claimed in claim 3, it is characterised in that the quantity of the guiding rib is equal to 3 or big
In 3.
5. being suitable for program-controlled shut-off valve as described in claim 1,2,3 or 4, it is characterised in that be additionally provided in the valve deck through-hole
Sealed letter hole section, the sealed letter hole section is located between the valve rod hole hole section and connection lumen pore section, in the sealed letter hole section
Equipped with sealing sleeve pipe, the valve rod across the pore of the sealing sleeve pipe and the pore hole wall of the sealing sleeve pipe there are
Fit-up gap, the pore hole wall of the sealing sleeve pipe are equipped with one or more horizontal inner seal ring slots, the sealing sleeve pipe
Lateral surface be equipped with one or more horizontal external seal annular grooves, be embedded in respectively on the inner seal ring slot and external seal annular groove
There are valve stem packing ring and valve bonnet seal circle.
6. being suitable for program-controlled shut-off valve as claimed in claim 5, it is characterised in that the hole wall of the valve rod hole is equipped with level
Valve rod hole closure gasket groove, valve rod hole sealing ring is embedded on the valve rod hole closure gasket groove, the valve stem packing ring, valve deck are close
Seal and valve rod hole sealing ring are O-ring.
7. being suitable for program-controlled shut-off valve as claimed in claim 5, it is characterised in that the hole wall of the connection lumen pore section is equipped with
Or it is not provided with vertical strip hole, when being equipped with the vertical strip hole, the quantity of the vertical strip hole is one or more.
8. being suitable for program-controlled shut-off valve as claimed in claim 7, it is characterised in that the periphery of the flap bottom is equipped with annular
Notch, it is described annular notch on be equipped with annular flap sealing element, the flap bottom is fixedly installed with sealing element pressing plate, institute
The periphery for stating sealing element pressing plate is pressed on the radially inner side region of the flap sealing element.
9. being suitable for program-controlled shut-off valve as claimed in claim 8, it is characterised in that the hydraulic cylinder, which is equipped with, can acquire push rod
The signal pickup assembly of movable signal and/or position signal, the signal pickup assembly are equipped with communication system, the signal acquisition
Device is equipped with displacement thief rod, and the displacement thief rod passes through the top of the hydraulic cylinder body, and lower end is fixedly connected described
The piston of hydraulic cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610129456.7A CN105650289B (en) | 2016-03-08 | 2016-03-08 | Suitable for program-controlled shut-off valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610129456.7A CN105650289B (en) | 2016-03-08 | 2016-03-08 | Suitable for program-controlled shut-off valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105650289A CN105650289A (en) | 2016-06-08 |
| CN105650289B true CN105650289B (en) | 2019-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610129456.7A Active CN105650289B (en) | 2016-03-08 | 2016-03-08 | Suitable for program-controlled shut-off valve |
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| CN (1) | CN105650289B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112032310B (en) * | 2020-07-27 | 2022-09-27 | 北京精密机电控制设备研究所 | High-precision gas mass flow control valve |
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| DE2358969A1 (en) * | 1973-11-27 | 1975-06-05 | Haendle & Soehne Karl | Remote controlled shut off valve - has retractable stop to ensure intermediate flow setting with stepless adjustment |
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| CN103075523A (en) * | 2013-02-02 | 2013-05-01 | 上海江浪流体机械制造有限公司 | Hydraulic program control valve |
| CN103759050A (en) * | 2014-01-17 | 2014-04-30 | 哈电集团哈尔滨电站阀门有限公司 | Novel check valve controlled to be closed |
| CN104197074A (en) * | 2014-08-21 | 2014-12-10 | 山东大学 | Integrated type electro-hydraulic drive regulating valve and control method |
| CN204493751U (en) * | 2015-03-16 | 2015-07-22 | 胡陈春 | Hydraulic program control valve |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202469029U (en) * | 2011-12-31 | 2012-10-03 | 苏州安特威阀门有限公司 | Pneumatic stop valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2358969A1 (en) * | 1973-11-27 | 1975-06-05 | Haendle & Soehne Karl | Remote controlled shut off valve - has retractable stop to ensure intermediate flow setting with stepless adjustment |
| CN200955584Y (en) * | 2006-08-24 | 2007-10-03 | 上海江浪流体机械制造有限公司 | Electric laying-out-material valve |
| CN103075523A (en) * | 2013-02-02 | 2013-05-01 | 上海江浪流体机械制造有限公司 | Hydraulic program control valve |
| CN103759050A (en) * | 2014-01-17 | 2014-04-30 | 哈电集团哈尔滨电站阀门有限公司 | Novel check valve controlled to be closed |
| CN104197074A (en) * | 2014-08-21 | 2014-12-10 | 山东大学 | Integrated type electro-hydraulic drive regulating valve and control method |
| CN204493751U (en) * | 2015-03-16 | 2015-07-22 | 胡陈春 | Hydraulic program control valve |
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| CN105650289A (en) | 2016-06-08 |
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